GLG 101 Week 8 DQ's - Week 8 Discussion Question 1 Due Date...

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Week 8 Discussion Question 1 Due Date: Day 2 [ Main forum] Post your response in 200-300 words to the following: · Geologic events, such as volcanic activity, play an important role in forming many of our valuable resources, such as fossil fuel, lead, copper, and gold. For example, fig. 15.21 on p. 476 of the textbook shows the role of basaltic magma in forming one of the most valuable ores to our civilization, chromium. · Select an important ore mined in your state or region, and discuss how geologic events played a role in forming this ore. Discuss the importance of this ore in the economy of your selected area and the U.S. as a whole. Response: Alabama is known for a diverse and widespread variety of minerals, that all play an important role in forming valuable resources for us. For instance, Alabama is the home to more than 190 different mineral species, which have occurred widespread throughout the state. Including clays, limestone, chalk, salt, quartz, copper, gold, graphite, iron, galena, and talc just to list a few. In addition, the state of Alabama was ranked annually in the top 20 among states in value of minerals produced in the U.S. in the latter half of the 20th century (Bergstresser, 2008- 2009). Decades after the Civil War, Alabama become one of the leading states for producing iron and steel. In addition, the Birmingham Alabama District became the largest iron and steel producer in the southern United States at this time, and this all because of unique geological conditions which provided the Birmingham and surrounding districts with closely associated and abundant deposits of iron ore, coal, limestone, and dolomite. These were the raw materials essential for making iron and steel, and at some locations within the district, deposits were only a few miles apart (Bergstresser, 2008-2009). This unique geological arrangement of valuable minerals resulted in the lowest raw-material assembly costs in the United States and allowed the district to grow as rapidly, in the last two decades of the nineteenth century, as Pittsburgh and Chicago (Bergstresser, 2008-2009). Red Iron ore (hematite) from the Red mountain formation has been mined in Bibb and several other surrounding counties here in Alabama. In addition, the Brown Iron ore (the mineral limonite and charcoal) have also been mined in various counties of Alabama including Calhoun County which I currently live today. In 1967, the mineral hematite
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This note was uploaded on 10/17/2010 for the course GLG 101 GLG/101 GE taught by Professor Jebainbarasu during the Spring '10 term at University of Phoenix.

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GLG 101 Week 8 DQ's - Week 8 Discussion Question 1 Due Date...

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